卡洛-马拉蒂（工作室） (卡梅拉诺 1625 年-罗马 1713 年） 圣格雷戈里大帝 铜版油画 24x19 厘米 - 带画框 38x32 厘米 这幅精美的铜版画复制了卡洛-马拉蒂 1686 年创作的大型祭坛画中描绘圣格雷戈里大帝的细节，这幅无可争议的杰作描绘的是圣母玛利亚教堂中的圣母无原罪像。与祭坛画相比，唯一的实质性区别在于鸽子的位置。安东尼奥-巴莱斯特拉（Antonio Balestra）将在圣格雷戈里奥-西利奥（San Gregorio al Celio）主祭坛的祭坛画中采用这一圣像。

Composed of several subsidiaries, the Drouot Group is a major player in the art market. Hôtel Drouot, located in the heart of Paris, has been the world's largest public auction center since 1852. 15 salerooms are available to more than 70 auction houses. The emulation generated by an annual offer of 230,000 artworks from 21 major specialities - from Antiquity to street art - attracts some 3,000 visitors every day. The Group's digital platform, Drouot.com, offers digital sales - Live auctions (live broadcasting and participation in auctions), Online-only auctions (dematerialised auctions) and Buy Now sales (sales of lots at fixed prices). Nearly 2 million items are offered annually by 600 auction houses. Auction news is reported every week in La Gazette Drouot, the leading weekly magazine for the art market and culture published by Auctionspress.